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Tue, 17 Mar 2026 10:20:14 -0400 X-MC-Unique: H-cnHrcVNoi9oF7MSpb-sw-1 X-Mimecast-MFC-AGG-ID: H-cnHrcVNoi9oF7MSpb-sw_1773757210 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id E382A1954B08; Tue, 17 Mar 2026 14:20:09 +0000 (UTC) Received: from fedora (unknown [10.45.225.204]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with SMTP id 4EC5C3000223; Tue, 17 Mar 2026 14:20:00 +0000 (UTC) Received: by fedora (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Tue, 17 Mar 2026 15:20:09 +0100 (CET) Date: Tue, 17 Mar 2026 15:19:59 +0100 From: Oleg Nesterov To: Christian Brauner Cc: Deepanshu Kartikey , mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, kees@kernel.org, akpm@linux-foundation.org, david@kernel.org, ljs@kernel.org, Liam.Howlett@oracle.com, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzbot+bbe6b99feefc3a0842de@syzkaller.appspotmail.com Subject: Re: [PATCH v3] kernel/fork: validate exit_signal in kernel_clone() Message-ID: References: <20260316151956.563558-1-kartikey406@gmail.com> <20260317-federn-umsiedeln-3afae949282a@brauner> MIME-Version: 1.0 In-Reply-To: <20260317-federn-umsiedeln-3afae949282a@brauner> X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Mimecast-MFC-PROC-ID: rAO1pbj1ItpZE6E7Tn7JiEAtop2KQ8SDoNc5ooflvqg_1773757210 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: C9A794001C X-Stat-Signature: wpdtwfhz8ni63zj6ue5pqcqh3jm6jy5t X-Rspam-User: X-HE-Tag: 1773757217-18946 X-HE-Meta: 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 9XZG4yNN 34vOv8LHd4yCFu6DLpC77IhvfVIKLStPsIuswOlFeI38ECCrOhln8MEXjh3tzLdkPT4tAGRQfAZPAlWv9f6SdAL5ftmmeJeQEt9NwUY5v6v3mo6DHtlRSx0z9Oh3J028VbEjp62pkd086kgQpT/RVBxn1Y5mjCv+j7qYlezc7aWJn+YCWF50mpQWpCKPNt4K4Zj5phK3dgfNaVMI= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 03/17, Christian Brauner wrote: > > > Andrew, I will slightly update the changelog and resend > > do_notify_parent-sanitize-the-valid_signal-checks.patch > > in reply to this patch from Deepanshu. > > I'll take this via the pidfs/kernel tree. I also have a bunch of work > touching this stuff queued there. Ah... Then can you also take [PATCH -mm v2] do_notify_parent: sanitize the valid_signal() checks https://lore.kernel.org/all/abld-ilvMEZ7VgMw@redhat.com/ which I sent a minute ago on top of this patch? (I have trimmed the huge CC, so you wasn't CC'ed). Cough... and may be another/unrelated [PATCH] pidfd_prepare: don't pass O_RDWR to pidfs_alloc_file() https://lore.kernel.org/all/aZ8gwQYpIjVktcOs@redhat.com/ which I sent you almost a month ago? Oleg.